Mitsubishi Electric PURY-P200 Service Handbook page 113

3. Amount of additional refrigerant to be charged
The unit is charged with the amount of refrigerant listed in the table below at factory shipment. The refrigerant
necessary for extension pipes (on-site piping) is not included and it must be added on site.
Outdoor unit model name
The amount of refrigerant that is sealed in
Sample calculations
<The amount of additional charge>
Size of high-pressure pipe
Total length of ø 25.4 x 0.31
(m) x 0.31 (kg/m)
Size of high-pressure pipe
Total length of ø 12.7 x 0.12
+
(m) x 0.12 (kg/m)
Total number of Amount of
BC controllers refrigerant for
(sub) BC controllers (sub)
+
1 unit 1.0kg
2 units 2.0kg
<Example>
Indoor units 1 : 100 type
When
The total length of each liquid pipe is
<Sample calculation>
P200 P250
10.5kg 13.5kg
Outdoor unit
110 m or less
A
Main pipe
BC controller
Indoor unit
(Models between
P141 and P250)
Size of high-pressure pipe
Total length of ø 22.2 x 0.23
+
(m) x 0.23 (kg/m)
Size of liquid pipe
Total length of 9.52 x 0.06
ø
+
(m) x 0.06 (kg/m)
A : ø 19.05 40m
2 : 63 type B : 9.52 10m
ø
3 : 32 type
4 : 63 type
ø 19.05 : A = 40 m
9.52 : B + a + b + d = 10 + 10 + 5 + 10 = 35m
ø
ø 6.35 : c = 10m
Therefore
The amount of additional charge = 40 x 0.16 + 35 x 0.06 + 10 x 0.024 + 2
- 110 -
P300 P350 P400 P450
13.5kg 13.5kg 16.5kg 22.0kg
A
Note: The total model names downstream in
the table below represent that viewed
from A-point in the above figure.
Branch pipe (for Y-series)
CMY-Y-102S-G
a B
b
1
Indoor unit
2
Maximum of 3 units per branch joint.
Total capacity of P140 or less
(All units connected to the same branch
joint must be in the same mode.)
Size of high-pressure pipe
Total length of ø 19.05 x 0.16
+
(m) x 0.16 (kg/m)
Size of liquid pipe
Total length of 6.35 x 0.024
ø
+
(m) x 0.024 (kg/m)
a : ø 9.52 10 m
b : ø 9.52 5 m
c : ø 6.35 10 m
d : ø 9.52 10 m
= 10.8kg
P500 P550 P600
22.0kg 22.0kg 22.0kg
To downstream unit
40 m or less
c d
Indoor unit
3
Indoor unit 4
Size of high-pressure pipe
Total length of ø 15.88 x 0.11
+
(m) x 0.11 (kg/m)
Total capacity Amount of
of connected refrigerant for
indoor units indoor units
+
~80 1.0kg
81~160 1.5kg
161~330 2.0kg
331~480 2.5kg
481~630 3.0kg
631~710 4.0kg
711~890 5.0kg
891~1070 6.0kg
P650
22.0kg